Pre-formed stair component



FIG. 1 is a front view of a pre-formed stair component showing my newdesign;

FIG. 2 is a rear view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a perspective view thereof, wherein the elements shown inphantom represent an environment and are not part of the claimedinvention;

FIG. 8 is a front view of a pre-formed stair component showing my newdesign, and depicting an alternate embodiment thereof;

FIG. 9 is a rear view of the pre-formed stair component of FIG. 8;

FIG. 10 is a right side view thereof;

FIG. 11 is a left side view thereof;

FIG. 12 is a top view thereof;

FIG. 13 is a bottom view thereof; and,

FIG. 14 is a perspective view thereof, wherein the elements shown inphantom represent an environment and are not part of the claimedinvention.

The ornamental design for an "pre-formed stair component," as shown anddescribed.